change empty list to qs.none()

Author: aron bergur jóhannsson

netbox/netbox/graphql/fields.py

@@ -61,7 +61,7 @@ def list_resolver(django_object_type, resolver, default_manager, root, info, **a
         if filterset_class:
             filterset = filterset_class(data=args, queryset=queryset, request=info.context)
             if not filterset.is_valid():
-                return []
+                return queryset.none()
             return filterset.qs
 
         return queryset